

#ifndef __C_GUI_SCROLL_BAR_H_INCLUDED__
#define __C_GUI_SCROLL_BAR_H_INCLUDED__


#include "IGUIScrollBar.h"
#include "IGUIButton.h"

namespace irr
{
    namespace gui
    {

        class CGUIScrollBar : public IGUIScrollBar
        {
        public:

            //! constructor
            CGUIScrollBar(bool horizontal, IGUIEnvironment* environment,
                IGUIElement* parent, s32 id, core::rect<s32> rectangle,
                bool noclip=false);

            //! destructor
            ~CGUIScrollBar();

            //! called if an event happened.
            virtual bool OnEvent(SEvent event);

            //! draws the element and its children
            virtual void draw();

            //! sets the position of the scrollbar
            virtual void setPos(s32 pos);

            //! sets the maximum value of the scrollbar. must be > 0
            virtual void setMax(s32 max);

            //! gets the current position of the scrollbar
            virtual s32 getPos();

        private:

            void setPosFromMousePos(s32 x, s32 y);

            IGUIButton* UpButton;
            IGUIButton* DownButton;

            bool Dragging;
            bool Horizontal;
            bool NoClip;
            s32 Pos;
            s32 DrawPos;
            s32 DrawHeight;
            s32 Max;
            s32 SmallStep;


        };

    } // end namespace gui
} // end namespace irr

#endif

